EP 3957239 A4 20220504 - NON-INVASIVE METHOD AND SYSTEM FOR MEASURING MOTION FEATURE OF MYOCARDIAL TISSUE
Title (en)
NON-INVASIVE METHOD AND SYSTEM FOR MEASURING MOTION FEATURE OF MYOCARDIAL TISSUE
Title (de)
NICHTINVASIVES VERFAHREN UND SYSTEM ZUR MESSUNG EINES BEWEGUNGSMERKMALS VON HERZMUSKELGEWEBE
Title (fr)
PROCÉDÉ ET SYSTÈME NON INVASIFS POUR MESURER UNE CARACTÉRISTIQUE DE MOUVEMENT D'UN TISSU MYOCARDIQUE
Publication
Application
Priority
CN 2019083290 W 20190418
Abstract (en)
[origin: EP3957239A1] The present invention relates to a non-invasive method for measuring the motion characteristics of myocardial tissue, wherein the method comprises: transmitting a plurality of generated synchronous orthogonal, phase controllable and adjustable alternating currents with different frequencies to an organism so as to generate a plurality of synchronous periodic AC voltage signals with different frequencies; receiving the periodic AC voltage signals modulated by changes in the organism's heart tissue to obtain the organism's frequency responses; calculating resistances and capacitances of the heart tissue according to the frequency responses; estimating motion characteristics of myocardial tissue according to the resistances and the capacitances. By means of introducing the average longitudinal length of the myocardial cells, and calculating changes in the average longitudinal length of the myocardial cells according to the capacitances, the present invention provides a method for describing the overall longitudinal elasticity of the heart. The present invention provides a method that is continuous, has a high-sampling rate and is non-invasive in order to measure the motion of myocardial tissue at the cellular level, so that relatively subtle abnormal changes in the myocardium can be detected.
IPC 8 full level
A61B 5/05 (2021.01)
CPC (source: EP US)
A61B 5/0006 (2013.01 - US); A61B 5/0245 (2013.01 - US); A61B 5/0531 (2013.01 - EP); A61B 5/1126 (2013.01 - EP); A61B 5/7257 (2013.01 - US); A61B 5/7285 (2013.01 - US); A61B 5/7475 (2013.01 - US)
Citation (search report)
- [XI] WO 9853737 A1 19981203 - N I MEDICAL LTD [IL], et al
- [E] EP 3957240 A1 20220223 - MSHEAF HEALTH MANAGEMENT TECH LIMITED [CN]
- See also references of WO 2020211051A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3957239 A1 20220223; EP 3957239 A4 20220504; CN 113727644 A 20211130; JP 2022528823 A 20220616; JP 7156739 B2 20221019; US 2022183573 A1 20220616; WO 2020211051 A1 20201022
DOCDB simple family (application)
EP 19924783 A 20190418; CN 2019083290 W 20190418; CN 201980095292 A 20190418; JP 2021549915 A 20190418; US 201917594420 A 20190418